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libavcodec
x86
bswapdsp_init.c
Go to the documentation of this file.
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/*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdint.h>
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#include "
libavutil/attributes.h
"
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#include "
libavutil/cpu.h
"
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#include "
libavutil/x86/cpu.h
"
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#include "
libavcodec/bswapdsp.h
"
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void
ff_bswap32_buf_sse2
(uint32_t *dst,
const
uint32_t *src,
int
w);
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void
ff_bswap32_buf_ssse3
(uint32_t *dst,
const
uint32_t *src,
int
w);
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av_cold
void
ff_bswapdsp_init_x86
(
BswapDSPContext
*c)
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{
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int
cpu_flags =
av_get_cpu_flags
();
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if
(
EXTERNAL_SSE2
(cpu_flags))
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c->
bswap_buf
=
ff_bswap32_buf_sse2
;
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if
(
EXTERNAL_SSSE3
(cpu_flags))
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c->
bswap_buf
=
ff_bswap32_buf_ssse3
;
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}
BswapDSPContext::bswap_buf
void(* bswap_buf)(uint32_t *dst, const uint32_t *src, int w)
Definition:
bswapdsp.h:25
cpu.h
attributes.h
Macro definitions for various function/variable attributes.
av_cold
#define av_cold
Definition:
attributes.h:66
EXTERNAL_SSE2
#define EXTERNAL_SSE2(flags)
Definition:
cpu.h:50
ff_bswap32_buf_sse2
void ff_bswap32_buf_sse2(uint32_t *dst, const uint32_t *src, int w)
cpu.h
BswapDSPContext
Definition:
bswapdsp.h:24
EXTERNAL_SSSE3
#define EXTERNAL_SSSE3(flags)
Definition:
cpu.h:52
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:47
ff_bswapdsp_init_x86
av_cold void ff_bswapdsp_init_x86(BswapDSPContext *c)
Definition:
bswapdsp_init.c:29
bswapdsp.h
ff_bswap32_buf_ssse3
void ff_bswap32_buf_ssse3(uint32_t *dst, const uint32_t *src, int w)
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